Cutting machine for the making of shingles



April 23, 1929. E. J. WHITTA KER r cU TT I NG MACHINE FOR THE MAKING OFSHINGLES Filed June 16 1927 5 Sheets-Sheet g Zia pril 23, 1 929.

E. .1. WHITTAKER ,392 CUTTING MACHINE FOR THE MAKING OF HINGLES Filed un16, 1927 I5 Sheets-Sheet 3 if I 57 f4- gig 020 p E. WHITTAKER 1,710,392

-CUTTING MACHINE FOR THE MAKING OF SHINGLES Filed June 16, 192'? sSheets-Sheet 5 gwomm:

zzwz, .zwizhm Patented A ezs, 1929.

UNIITEDC- STATES NT OFFICE.

PATE

EAItL J. WHITTAKER, OF ABERDEEN, WASHINGTON, ASSIGNOR T HARVEY W.BAILEY,

or SEATTLE,

CUTTING MACHINE FOR '1 WASHINGTON.

HE MAKING OF SHINGLES.

Application filed June 16, 1927. Serial No. 199,209.

This invention relates to shingle machines, v

' for preventing the making of and for using the waste portions of woodsubstance which are at present madeby saws or cutting machines, whichwaste in such instances takes the form of sawdust and spalt. My machineprovides for the making of dustless cuts, and for using all of the spaltthat is available for the manufacture of l shingles.

A further object of my invention is to provide in such amachine aplurality of knives, feed-rolls and operating controls for blocks, sothat several cuts may be made each time the knives complete a singlegyration.

A further object of my invention is to rovide a differential motion tothe knives, so that they may enter the blocks at 'relatively higheradvance, or shearing speed,

and leave the cut at a low advance, or

slicing speed, to prevent, in all events, the

cut from splitting from the block.

A further object of my invention is to provide in-such machine, means tooperate and control at will the positive, even and differential feedingof the blocks into the cutting areas of the knives, and to firmly holdsuch blocks in proper position to establish and deliver the desiredcuts.

A further object of my invention is to provide means whereby blocks ofirregular radially advanced into the shape may be cutting areas of theknives by the positively controlled motion of the feed-rolls contactingthe ends of the block's, thus feeding one or either end of such blocksonly, and when cutting shingles, to make butt-cuts only from such feedend, repeating this process until the blocks are cut to regular shape;thereafter to alternate the feed of the blocks so that first a tip andthen a butt of a shingle' will be cut from the blocks fed to the knivesin the manner prescribed.

A further object of my invention is to undue strains upon such providemeans for feeding and control of a plurality of blocks intothe knifeareas of any one or more ofthe several feed-rolls, whereby such blocksmay be fed and positively.controlled forcutting standard and dimensionshingles, or otherwise.

A further object of my invention is to provide in connection with thefeed-rolls of such mechanism, means for holding the spalt of each block,and to cut same into shingles, while said spalt is being crowded downinto descending into their cutting areas.

A further object of my invention is to provide in such mechanism meansfor establishing, operating, controlling and for balancing the throw ofthe knives in 'such manner that their advance into the cutting areas andtheir retreat therefrom shall he in constant equipoise, and that theiroperation shall produce no vibration within or machine that may in anymanner affect its perfect control and work.

A further object of my invention is to provide, in connection with suchmechanism, for controlling, establishing, operating and synchronizingeach moving part of same, so that the timing and performance of the cutsmade may equalize any vibration of parts and may counteract the strainsinduced by a change of feed, throw of feed, frequency of gyration, orotherwise.

Other objects will. appear by a reference to the specificationsdescribing my invention and to the drawings illustrating the same, inwhich- Figure 1 is a plan view of my improved the knives by the blocknext cutting machine, illustrating the cam and bell-crank arrangementsfor operating certain feed-rolls. I

Fig. 2 is a vertical sectional view taken substantially on the line 22of Fig. 1.

Fig. 3 is a sectional view taken on the line 33 of Fig. 1.

Fig. 4 is a cross-section on the line 4-4 of Fig. 1, illustrating theblock-feeding rolls and the spalt bar arrangement.

Fig. 5 is a vertical section of one of the roller-ratchet-grips foroperating the feed rolls.

Fig. 6 is an elevation of a detached block feeding roll adjustment andits connecting mechanism.

Fig. 7 is a central vertical section of the Fig. 9 is an enlargedsection of the spalt bar and showing its association with certain feedrolls.

Describing the mechanism and drawings in detail the reference numeral 1,designates the machine frame which suitably supports all its fixed andworking parts.

Numeral 2, designates bearings which seat and carry shaft 2, pinion 5and friction disc 4 which is driven by power-driven pinion 3. Suitablyfixed to the base and top of machine frame 1, are bearings 7 and 8,seating and carrying the central main driveshaft 9, to which is keyedgears 6,10 and 11, and collars 12. Selectively affixed to the machineframe 1, bearings 13 and 14 carry the-driven shafts 15 (see Fig. 1), towhich shafts are keyed gears 16, meshed with and driven by gear 10 thrudriving-shaft 9. To the upper part of shafts 15 are keyed driving discs17, seating and'driving the saddle 18 carnying the .knives 21, thecontrolled action of which is to cut or slice regular or, irregularshaped pieces from wooden blocks, or othersimilar materials fed intotheir cutting areas by block feed-rolls 26, thru openings (See Figures 1and 3.) p The saddle 18, preferably in the form of an annulus, is seatedupon and driven by crank-pins 19 which are adjustably seated in slots 20grooved within discs 17. At one or more positions on the periphery ofsaddle 18, the knives 21 are selectively attached, preferably seatedthereon with their plane edges facing upward beneath bed-plate 22, andtheir bevel edges facing downward. By the action of driving discs 17,saddle 18 is arranged to rotate through suitably adjustable arcs in ahorizontal plane, registering a cutting action to the knives that isgreatest in length of stroke at the beginning of their cut, and greatestin their drag or slicing movement at the end of such stroke, therebytending'to prevent the splitting of the cut from the face of the blockunder treatment. In Figure 1 the numeral 21 shows the position of one ofthe knives beneath the bel opening 24 at the end of its stroke, each ofsaid knives being carried on the saddle-lug 18, which lug is castintegral with the saddle 18. Thus, numeral 21, showing the knivesafiixed to the saddle 18, and the positions assumed in cutting off ashingle from a block, as such blocks are fed into the cutting areas ofthe knives by feed-rolls 26. The knife at the top is withdrawn fromunder the block, and when the machine is op rated as a pluralblock-cutter, the feed iolls on that side will, with the cam and -crankarrangement, about to be described, set or feed the block downward 3.

distance equal tothe thickness "of a shingle; and likewise, such orderwill proceed, alternately in the feeding of said blocks into the cuttingareas of the knives, around the machine.

Drive shaft 9 projects upward thru the bod-plate 22, such shaft mountingand driving pinion 11 in mesh with gear (See Figure 2.) Openings 24 arelocated in suitable positions in-bed-plate 22," over which openings orfreeways and slidably affixed in suitable grooves in said bed-plate, isseated the feed-roll frames 25 on which is mpunted bearings 27supporting shafts 29 carrying feed-rolls 26. Said feed-rolls 26 areadapted to automatically feed regular or irregularly shaped blocks intothe cutting areas of the knives 21, and may be co'ntrollably regulatedto register any desired standard or dimension cuti. 85

Referring to Figures 3 and 4, each respective set of feed-rolls 26,carry their spaltbars 28 rotatably mounted on shafts 29 by rings 51,whi'ch spelt-bars by means of their sharp, toothed edges 28 are arrangedto graspand firmly hold the spalt as such toothed edges ai-epressed intothe ends there- -of by the reaction of the selectively adapted springs48 that are seated against the rearward portion 49 of said .spalt-bars28 and bracket 50, a fixture attached to the feed-roll frames 25 tofulfill the purpose expressed. By this action of the spalt-bars 28, andwhile being crowded down thru the feed rolls 26 by other blocks cominginto position for cutting, shingles may be cut from said spalt until thesame is completely utilized.

In the rearward portion of said spaltbars 28, studbolts 52 may be fittedin hole 52" (see Fig. 4) the free ends of which stud- I05 bolts arefixedwithin suitable openings 52 in bracket 50, and positioned with jam-nuts53 so that sufficient play will be allowed for spalt-bars 28 to beoperated by springs 48, and said bars will properly engage thespaltwhile the shingles are being cut therefrom, and will release thespalt when same is being adjusted or positioned for a new cut. Spalt-bar28 is of triangularshape, its wings. 28 being of suitable size .115 formounting between the sections of feedrolls 26. Feed-roll 26 is made inthree sections with key-way in its bore as shown. In the assembly of thefeed-rolls, the rolls are mounted to shaft 29 said rolls being separatedby rings 51 a distance suflicient to allow for the free movement of thespalt-bars. Rings 51 are of smaller diameter than the centralcross-sectional measurement of the feed-rolls, and said rings are ofequal size 1 5 as hole 28 in spalt-bars 28. Feed-rolls 26 .are machinedto right length to fit longitu- '68, 69, and 71 are adjustably whichcrank-pins act as axes of the control rods 61, 62, 63 and 64, foroperation and hole 28 (see Fig. 9), in spalt-bar 28. Said feed-rolls,with their 'spalt-bars, being assembled in three sections on shaft 29,allows said rolls to revolvably feed and hold more In Figure 6, thefeed-roll adjustment device 30, controlled by hand-wheel 31, (see Fig.1), may be set to alternately, or directly, cut butts and tips ends,such control mechanism 30 being driven by cam and bellcrank arrangementas shown in Figure 1. Drive pinion 11 (see Figures 1 and 2) operatesgear 33 carried on shaft 3% and is seated in bearings 35, said shaft andbearings being suitably supported by frame 36 bolted to bed-plate 22, asshown in Figure 2. The upper part of shaft 34 carries a cup or invertedcylinder 37 in which slots 39, (see Fig. 7), serve as seatings whereinto adjustably fix cams 40, by means of stud-bolts 41 passing throughsaid slots 39 and being tightly secured or held by locknuts 38 atlixedto stud-bolts 41. In operation, as gear 33 rotates cylinder 37 by meansof shaft 34, cams 10 oscillate the bellcranks 54 on axes 55, and byadjustments 56 and levers 57, give selective andadjustable movement tomocha-- nism 30, controlling the operation of feedrolls 26 with theirspalt-bars 2'8, substantially as described, and as specified in theobjects thereof.

An elevation represented in Figure 6, shows in detail the mechanism ofthe feedroll controls or adjusting devices 30 by which the positivecontrol of feeding the shingle blocks into the cutting areas of theknives 21, is regulated, each of said devices being driven by power-arm58 thru axis 59 on disc 60. Said disc 60 is of suitable size tocarry'and space the control arms 61,,62,

- 63 and 64 which drive and control the operation of each of theroller-grips 65, shown in sectional detail in Figure 5. Returning toFigure 6, disc 60 is mounted on axis 66 which is suitably provided andadjustably fixed to bed-plate v22. Disc 60 is provided with a verticalslot 67 in which, crank pins fixed, and

control of roller-grips 65. In Fig. 1 cams 40 on cylinders 37, shown inplan selectively, oscillate bellcranks 54, power being supplied thrugear 33 and shaft 34 as illustrated and described aforesaid. Bellcranksoscillating on axis 55 convey their movement thru connr-cting rods 57and 58, and hence to disc 60 and toroller-grips 65.

Upon inspection of Fi 1 it will be observed, that I provide two of theserollergrips for each feed-roll shaft 29: each pair of said grips (65)are assembled in reverse relation to each other. In Fi 5 is shown thefeed-roll shaft 29 on which disc 72 is keyed. Over said disc 72, sleevering 73 is slipped, which ring 73 carries a wing projection 73 on oneside, to which wing an operating lever, such as 62, may be attached athole 73 ()u the inside of ring 73 is a plural number of slots 74extending into the inner face of ring 73, and in which are placedrollers 75 of desired size. Between saidvrollers 75 and the back of saidslots 75 are springs 7 6 of amp-1e strength to hold rollers 75 againstthe circumferential surface of disc 72. Pulling downward oirwing 73 ofring 73 rollers 75 become wedges between the circumference of disc 72and the upper sides of slots 74, forming a nonslipping contactbetweensaid disc and ring (this action causes the block feed-roll 26 toturn in its bearings 27 delivering a selective and positive feed to itsblock). In ("011- ncction with'this "mechanism I have provided anattachment to control and release the roller-grips 65, whereby theoperator may hold said rollers 75 away from the periphery or face of thedisc 72, causing the ring 73 to move around the circumference of disc 72in either direction without turning feedroll 26. This action isexplained by the operation of pins 77 which 'are inserted in holes 77drilled into the circumferential face of ring 73 at right positions sothat when said pins are placed in the holes'as stated, their bevelledpoints 78 will contact and press against the side of rollers 75, andbeing pressed inward by band-ring 79, said rollers 75 will move backagainst springs 76 and into the slots 74, and will be held in thatposition as long as pressure is applied to band 79, as described. Toaccomplish such action I have provided steel band ring 79 fitted inconcentric relation to the outer circumference of ring 7 3, and over thehead of pins 77, connecting the free ends of said band 7 9 to two bentlevers 80, and with axis 81 common to each. Between the outer ends ofsaid levers, cams82 are placed, and by turning said cams by means ofhandwheel 31 thru a prescribed arc (in this instance approximatingdegrees) the outer ends of angle-levers 80, ma be separated in alternaterelation whic movement draws the inner ends of said levers together,thus tightening band 79 and pressing radially inward upon pins 77driving them into their respective sockets against their springs 8%(which springs are-held by said pins 77 between their largedisc-likeheads, and the rim of ring 73), thus releasing the gripsbetween ring 73 and disc 72, and allowing said ring free movement ineither direction. Cam 82 is operated by connecting rod to the operator,the parts being shown in Figures 1 and 5. The two roller-gri p blocksetters connected to the end of each block feed-roll are placed in areverse position, as shown in Figs. 1 and 6. This assembly is madenecessary in order to cut alternate butts arid tips of shingles: thereason for this formation of mechanism is explained in description ofFigure 6.

Between shafts 29, to each of which is connected the two roller-griparrangement or mechanism 65, is placed disc 60, which device regulatesand controls the action of roller grips 65 by means of rods 61, 62, 63and 64 attached to adjustably positioned pins 68, 69, 70 and 71 whichare placed or fixed in slot 67 grooved across the face of disc 60.

Disc 60, mounted on shaft 66, as illustrated, vmay oscillate with agiven throw provided thru rod 58. When rod 58 is moved to the right,disc 60 pulls on rods 61 and 64, both of which are adjustably connectednear the outer rim of disc 60, and which, therefore, have a longer throwthan rods 62 and 63 which are adjustably connected near the center ofsaid disc-and consequently have a 'forcontrolling and setting theshorter throw upon 'said rods. In such instance rods 61 and 64 operatingthru rollergrips 65 moves block feed-rolls 26 thru a greater are thancan rods 62 and 63. Thls action causes the blocks being fed into thecutting areas of the knives 21 to move downward a distancepre-determined as to each end of such blocks being so fed, thus providinfor the cutting of the butts of shingles regulating the long throw; andfor the tips of shingles by movements of rods 62 and 63 regulating theshort throw in saiddevice. By a reversal of this action an oppositeresult isobtained, thus providing for the alternate and successivemaking of a butt and tip of a shingle at each end of such blocks.

In the illustrations shown in Figure 1,.is shown a plan of a pair ofroller-rips 65, feed-rolls 26. Said grips may be connected to feedrollshafts 29 in opposition to each other,

' which position allow said devices to grip in alternate succession asthey oscillate around the circumference of discs 72 with or upon shafts29. The action of such control is accomplished by the automatic releaseof the rollers 75 as the rods 61 and 62, being connected to oppositeroller-grip rings at one end and being seated at the other in crank-pinsand 71. Reverse grip may'thus be moved about the circumference of disc72 without interfering with a contrary movement ofits opposite disc.

A sectional view of the barrel-shaped cam-holder or cylinder 37 shown'in Figure 7 and plan shown in Figure 1, the cams 40 are placed inalternate relation on the outside circumference of said cylinder wallsin such position that when cam 40 has moved forked bellcrank 54 to oneside, the adjusty the motion of rods 61 and. 64

able weight-arm of said bellcrank has transferred said motion thru rods57 and 58 to the feed-roll control mechanism 30, setting said feedrolls'26 for a desired cut. reverse movement of said bellcrank reversesthe action of the roller-grip, thus providing for'the re ulation andsuccessive control of such feed and cuts from the blocks passing thrufeed-rolls 26. Numeral 40 designates the cam showing stud-bolt 41, saidstud-bolt when assembled to be inserted in slots 39 in cam-holder orcylinder 37, cam 40 being adjustable about the circumference of cylinder37, whereby the timing of feedrolls 26 may be pre-adjustcd and regulatedas a determined control for cuts to be made from feed blocks.

Again referring toFigure 8 which shows a plan of one of the discs 17,also showing adjustable balance weights 45' for regulating the impulseand'throw of knives 21. Disc 17 1s cut away, as" indicated at 42, toadmit the The I ment thru a greater or lesser segment of arc within thebody of disc 17. Veights 45 are provided with wings 46 in which hole 46is drilled as a bearing to fix and suspend said weights upon shaft. 15within disc 17. Said weights are of suitable size and shape to providethe utmost in balancing effect. Stud-bolts 44 are fitted thru slots 47cut thru the web 43'of disc 17. A lock-nut 44 on each stud-bolt willhold weights 45 firmly in position for operation. The function of saidweights is to adjustably and accurately balance the reaction, or throw,of the saddleframe 18 with its, knives 21, as said saddle frame and theknives gyrate about their given orbit.

Having described my invention, what I claim is:

1. .In a shingle cutting machine, a bed plate having a block-receivingopening therein, a cutter operable beneath said opening, a rotatableelement connected to said cutter and adapted to move the same atvariable speeds below and across said opening, means for adjusting thespeed of said cutter, and means for operating said element.

2. In a shingle cutting machine, a bed plate having a block-receivingopening therein, a cutter operable beneath said opening, a rotatableelement connected to said cutter and adapted to move the same atvariable speeds below and across said opening, counterbalance meansadjustably associated with said rotatable element for regulating thespeed of said cutter and means for operating said element.

3. In a shingle cutting machine, a bed plate having an opening therein,means for feeding a block to a cutter, said'means emtherethrough,spalt-bars carried by the axes plate having an opening therein, meansfor.

feeding a block to a cutter, said means embodying spaced rolls rotativelmounted in said openings and adapted to eed the block therethrough,spalt-bars carried by the axes of said rolls, means for limiting themovement of said bars and tension means for holding said bars against ablock.

5. In a shingle cutting machine, a bed plate having an opening therein,means for feeding a block to a cutter, said means embodying spaced rollsrotatively mounted in said openings and adapted to feed the blocktherethrough, spalt-bars carried by the axes of said rolls, adjust-ablemeans for limiting the movement of said bars and tension means forholding said bars against a block.

6. In a shingle cutting machine, block feeding rolls, means foroperating the blockfeeding rolls, said means comprising-'- a rotatablecylinder, a plurality of'cams adj nstably carried thereby, 'anoscillatory bellcrank adapted to be engaged by selected cams,roller-grips associated with said rolls and adapted to be operated-bysaidbelb crank and manual means for controlling and releasing saidroller-grips to regulate the action of said feed-rolls. I 7. In ashingle cutting machine, a cammed cylinder adapted to be rotated; aivoted bell-crank operated by said cylin er, an oscillatory discconnected to said bell-crank, a plurality of spaced block-feeding'rollS, roller-grips associated with said rolls, levers connecting saidoscillatory disc and said roller-grips and adapted to be operated tovary the rotation of said rolls and manually operable means foruncoupling said rollergripsfrom their connected rolls.

In'testimony whereof I afiix my signature.

EARL J. WHITTAKE

